Laserfiche WebLink
~ .~~^7 i <br />r -~, ~ <br />"1 ~ ie m: <br />~E91 ~ 1986 <br />INTRODUCTION <br />J. fit '~JV.. ~... <br />In October 1980, Chimney Rock Coal began a hydrologic sampling <br />program. The program involves sampling of various chemical and physical <br />constituents at numerous surface and ground water stations. The mine site is <br />located approximately 20 miles southwest of Pagosa Springs, Colorado on Highway <br />151. The mine facilities are situated adjacent to Stollsteimer Creek which is a <br />perennial stream draining the area. Stollsteimer Creek flows to the southwest into <br />the Piedra River which is a tributary of the San Juan and Colorado Rivers, <br />respectively. <br />The objectives of this program are designed to gather information on <br />both surface and ground water regimes to assess the impacts of mining activities <br />on the existing hydrologic balance. To this end, monthly samplings have been <br />conducted to assess surface water flow and ground water well levels. Water <br />chemistry has been analyzed on a quarterly basis at both surface and ground water <br />stations. <br />Sampling locations which have been utilized during the program are <br />presented in Map 6R1, Regional Hydrology. Descriptions of each station are <br />presented below. <br />S-1 Surface water station located on Stollsteimer Creek # mile above <br />the mine facilities. The station was selected to assess baseline <br />conditions of stream quality and flow above mining activities. <br />S-2 Surface water station located on Stollsteimer Creek below the <br />surface facilities and mining activities conducted on the Barren <br />Ridge Area and above the inlet of the sedimentation ponds which <br />control site runoff from the Revision Area No. 1. The station was <br />selected to assess effects of surface operations on stream quality <br />and flow. <br />1 <br />